<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Open+Sans:300" type="text/css" />
		<style type="text/css">
			body {
	width: 100wh;
	height: 90vh;
	color: #fff;
	background: linear-gradient(-45deg, #EE7752, #E73C7E, #23A6D5, #23D5AB);
	background-size: 400% 400%;
	-webkit-animation: Gradient 15s ease infinite;
	-moz-animation: Gradient 15s ease infinite;
	animation: Gradient 15s ease infinite;
}

@-webkit-keyframes Gradient {
	0% {
		background-position: 0% 50%
	}
	50% {
		background-position: 100% 50%
	}
	100% {
		background-position: 0% 50%
	}
}

@-moz-keyframes Gradient {
	0% {
		background-position: 0% 50%
	}
	50% {
		background-position: 100% 50%
	}
	100% {
		background-position: 0% 50%
	}
}

@keyframes Gradient {
	0% {
		background-position: 0% 50%
	}
	50% {
		background-position: 100% 50%
	}
	100% {
		background-position: 0% 50%
	}
}

h1,
h6 {
	font-family: 'Open Sans';
	font-weight: 300;
	text-align: center;
	position: absolute;
	top: 45%;
	right: 0;
	left: 0;
}
		</style>
	</head>
	<body>
		<h1>Pure CSS3 Animated Gradient Background</h1>
	</body>
</html>
